Rifle attachment for firing miniature ammunition



www@ l May E29 @EL K. DANTHINE RIFLE ATTACHMENT FOR FIRING MINIATURE AMMUNITXGH Filed De@ 1, 192.8

Tm/@Mms KARL Ummm@ fie Patented May 12, 1931 SWITZERLAND, AssIGNoR To minimiertV sURBEn, Y or ZUR-ron, SWITZERLAND KARL- DANTHINE, 0F VBERN,

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RIFLE ATTACHMENT 'FOR FIRING MINIATURE AMMUNITION I Application filed December 1, 1928, Serial N'o. 322,992, and in Switzerland December 8, 1927.

This invention relates to an auxiliary device lfor tiring of small calibre ammunition from rifles, and has reference particularly to an auxiliary barrel, which is supported directly in front of the muzzle end of the iii'le and which has its ybore of any desired calibre and entirely independent of the bore of the rifle itself. Y c Y In connection with the well known devices of this character, the auxiliary barrel receiving the small calibre ammunition is introduced-directly into the inside of t-he riiie bari'el. The modern army firearm is a small calibre rileand as a consequence, when 1t is required to insert the auxiliary barrel inside the riiebore, the auxiliary barrel is only able to handle small calibre ammunition with percussion Caps, and not cartridges with powder charge, for they reason that there might be the danger of the very thin walled auxiliary barrel becomingfdeformed, underv pressure of the charge. The well known devices, as a'result, may not be used for small cartridgeshaving a range of more than 200 meters in the open. I l

ith the foregoing in mind, it is the purpose'` of this' invention' to provide means whereby small calibre ammunition of any diameter may be used irrespective of the size of the rifle bore.

In the accompanying drawing is illustrated by way of example one form of construction according to the present invention.

Figure 1 shows a longitudinal section wherein only so much of the army rifle is illustrated as is necessary for explaining the invention, and

i Figure 2 shows a detail. JThe device is provided, for the purpose of connecting the auxiliary barrel 1 to the barrel 2, with a member 3 formed as a sleeveA whlich fits into a ring 4, fitted over the front end of the rifle barrel, and has its reduced extension 5 fitted into the rifle barrel. The auxiliary barrel 1 and the sleeve 3 are connected together by means of a bayonet joint 17. The cartridge seating of the auxiliary barrel 1 is indicated at 16. The ring 4 is provided with a downwardly projecting forked arm 6 (Figure 2), which is secured or rigidly connected to-arfixedy part of the ritle, for example the upper band 8,by av bolt 7, the upper band 8 being secured to the rifle stock in any suitable manner. Inthis manner the sleeve 3 is securely attached to.

the rifle barrel." The sleevel 3 accommodates at its rear end in a boring thereof a cylindrical sleeve 9 in which a cylindrical head 10 is longitudinally movable, this head being provided with two projecting striker pins 11 passing through two holes in the bottom of the sleeve9, these striker pins serving to ignite the cap of the miniature ammunition fitted into the cartridge seating 16. VIn the smaller boring of the extension 5 Vand ina guide sleeve. 12 fitted into the cartridge seatlingof the rifle barrel` 2 there is slidably' guided a rod 13. 'A spiral springll fitted around the rod 13 bears at the front onthe extension 5 and at the rear against a collar 150i? the .rod 13 whereby the latter is al-l ways moved rearwardly wit-.hin reach of the striker 18 of thev rie.

`When a blow is imparted to the rod byv the striker 18 of the rifie this is transmitted by the rod 13 to the striker 10 which in turn by means of the pins llracts upon the cap of the miniature ammunition.

initial positionV ready for the next shot. For removal of the cartridge case from the auxiliary barrel 1 and for loading this with a freshcartri'dgethe auxiliary barrel must be removed from the sleeve?) by disengaging cording as. tovvhether firing is to take place. in the open or in closed spaces. The device described may be applied toany suitable army rifle, which after the removal of the device can immediately be used for its normaloperation; vDamage to the rifle barrel when using the device, forming the subject of the invention, is practically excluded. f

The spring 14 thenimmediately 'returns the rod 13 into its:

Instead ofv being attached to the upper band 8 by means of the bolt 7 the sleeve 3 could also be attached to the rifle barrel 2 by other suitable securing means.

l. A device for iring miniature ammunition with army rifles comprising an auxiliary barrel, into which the miniature ammunition is adapted to be placed, said auxiliary barrel extending in its entirety beyond the end of the rifle barrel and having al sleeve shaped member bearing closely against the end oit' the rifle barrel and iitting snugly into the latter, said member serving to effect the connection between the rifle barrel and the auxiliary barrel, a striking device, and a rod 2. A device for firing miniature ammunition with army riles'comprising an auxiliary bare. rel, into which the immature ammunition is adapted to beplaced, a sleeve shaped member adapted to be fitted on the front of the rifle barrel, this member serving to effect the connection between the riiie barrel and the auxiliary barrel, a sleeve firmly mounted in said connecting member, a striking device guided in this lirmly mounted sleeve, and afrod fitted into the rifle barrel iny such a manner, that` the movement of the striker of the riiie is transmitted to the rod-and by means of the striking derice is transmitted to the miniature ammunition for the purpose of firing this, said striking device being arranged in such a manner; that when placing the rifle 'on its buttv end the striking device returns toits initial position under the action of gravity. p

S. A device for firing small calibre ammunition from rifles, comprising an auxiliary l barrel disposed co-axially of the riil'e barrel and having its bore independent of and beginning beyond thel end of the rifle barrel, said auxiliary barrel extending'in'itsentirety beyond the end ofthe rifle barrel, and means operatively associated with the rifle' for i'iring ammunition from said auxiliary barrel;

4. A device for iring'small calibreV ammunition from riiies, comprising an auxiliary barrel disposed co-axially of therifle barrel and extending in its entirety beyond the end of the rifle barrel,vand-1neans insertible in' the bore of the rifle barrel to support the said auxiliary barrel beyond the end of the rifle barrel.

In combinationl with a riiie havingy a bored barrel and firing mechanism therefor, of an auxiliary device for iring'small calibre ammunition from said rifle, comprising a barrel disposed coaxially of the' ritle barrel and entirely beyond the' end ofthe? latter,

means insertable at one end in the nozzle end of the riie barrel and embracing the auxiliary barrel at the other end, and striker means in the inner end of the auxiliary barrel and operatively connected with the firing mechanism of the rifle for iiringammunition from said auxiliary barrel.

6. In combination With a riiie having a bored barrel and firing. mechanism therefor, of an auxiliary device for firing small calibre ammunition from said rifle, comprising a barrel disposed coaXially of the rifle barrel, arfiring means between the riile and auxiliary barrels, a union for the twoY barrels,com prising a socket to receive the firing means and aid the auxiliary barreland support the latter beyond the end of the rifleY barrel and a reduced portion to fit tightly in the muzzle end of the rifle barrel, and an axially reciprocal rod mounted in the rifle barrel and pro jecting through the reduced portion of the union at one end to operate the firing means and connected to the tiring mechanism ofthe rifle barrel at the other end. l

7. A union for a. riiie and auxiliary barrel, asclaimed in claim 6, including a bayonct joint between the free end of the vsocket and the auxiliary.

8. union Jfor a rifle and auxiliary barrel, as claimed in' claim 6, including a. pair of circular bands embracing the end of the rifle barrel and-socket and the stock of the rifle, and a. connection betweenthe two bands.

9. An auxiliary device, as claimed'inY claim 6, in which the firingmeans comprises a cap, a firing head therefor,y and firing'pins carried by thecap and movable under contact ofV the head, the latter being disposed in the path of movement of said rod connected with theV liring mechanism of the rifle..

In vtestimony whereof I aix my signature. 

